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mpegvideo: simplify REBASE_PICTURE
Always evaluate to NULL when the source Picture is not located in the MpegEncContext.picture array. That will only happen for next/last_picture_ptr when updating the thread context during h264 frame threaded decoding, where they will point to elements of ref_list. Since ref_list is not copied during updating the context and is invalid until it is constructed for the current slice, there is no point in doing anything complicated with next/last_picture_ptr, as they will get updated when the ref_list is filled.
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@ -712,10 +712,10 @@ typedef struct MpegEncContext {
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int context_reinit;
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} MpegEncContext;
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#define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \
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(pic >= old_ctx->picture && pic < old_ctx->picture+old_ctx->picture_count ?\
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&new_ctx->picture[pic - old_ctx->picture] : (Picture*) ((uint8_t*)pic - (uint8_t*)old_ctx + (uint8_t*)new_ctx))\
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: NULL)
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#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
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((pic && pic >= old_ctx->picture && \
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pic < old_ctx->picture + old_ctx->picture_count) ? \
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&new_ctx->picture[pic - old_ctx->picture] : NULL)
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/* mpegvideo_enc common options */
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#define FF_MPV_FLAG_SKIP_RD 0x0001
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